Package org.apache.flink.runtime.executiongraph.metrics

Class DownTimeGauge

java.lang.Object

org.apache.flink.runtime.executiongraph.metrics.DownTimeGauge

All Implemented Interfaces:

org.apache.flink.metrics.Gauge<Long>, org.apache.flink.metrics.Metric

public class DownTimeGauge
extends Object
implements org.apache.flink.metrics.Gauge<Long>

A gauge that returns (in milliseconds) how long a job has not been not running any more, in case it is in a failing/recovering situation. Running jobs return naturally a value of zero.

For jobs that have never run (new not yet scheduled jobs) or jobs that have run again after failing, this gauge returns 0L, and for jobs that are not running any more, it returns -1L.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	METRIC_NAME

Constructor Summary

Constructors

Constructor	Description
DownTimeGauge(JobStatusProvider jobStatusProvider)

Method Summary

Modifier and Type	Method	Description
Long	getValue()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.flink.metrics.Gauge

getMetricType

Field Details

METRIC_NAME

public static final String METRIC_NAME

See Also:

• Constant Field Values

Constructor Details

DownTimeGauge

public DownTimeGauge(JobStatusProvider jobStatusProvider)

Method Details

getValue

public Long getValue()

Specified by:

getValue in interface org.apache.flink.metrics.Gauge<Long>